If Modem/ModemData.txt tells you that the modem can be set up by loading (modprobe) the modules snd_atiixp_modem, snd_via82xx_modem or snd_intel8x0mcd, this section may be for you. You need the sl-modem-daemon package.

If you can go online with your Ubuntu, you can install the package/daemon by enabling the multiverse repository and then install the sl-modem-daemon package.

If you cannot go online with your Ubuntu, search for the package using http://packages.ubuntu.com/ , download (link to .deb is given under the text "Architecture") and transfer the package for your version of Ubuntu to your Desktop. After making sure you do not have any other .deb files in your Desktop, open a terminal (Alt+F2, type gnome-desktop -Ubuntu- or konsole -Kubuntu, hit enter), and type or copy-paste the following commands:

cd ~/Desktop
sudo dpkg -i *.deb

You can delete the .deb file you used if the installation was successful.

To set your country, run sudo dpkg-reconfigure sl-modem-daemon -plow and follow instructions on the terminal. Restart the daemon with sudo /etc/init.d/sl-modem-daemon restart

For further information to configure the daemon (if it is not working), see the following "text" files (using a text editor like gedit or nano): /etc/default/sl-modem-daemon and/or /usr/share/doc/sl-modem-daemon/README.Debian

Now you can go on to use a dialing tool (see table of contents of this wiki page; preferably wvdial for slmodems).